基于KVL的Boost变换器电压增益分析

Voltage Gain Analysis of Boost Converter Based on Kirchhoff Voltage Law

对基于基尔霍夫电压定律的Boost变换器电压增益分析方法进行了研究。该方法能够使学生更加直观理解变换器实现升压的原理,无需对整个开关周期进行复杂的模态分析就能获得变换器电压增益特性,且利用该方法可以进一步推导得到高升压Boost类变换器的电路结构与实现方法。通过实验验证了分析结果的正确性,所提方法为分析、理解和研究Boost类变换器电压增益特性提供了新的视角。

The voltage gain analysis method of Boost converter based on Kirchhoff voltage law is investigated in this paper.Students are able to understand the voltage step-up principle more easily with the proposed method.The voltage gain equation can be derived without complicated operation mode analysis of the whole switching cycle.Moreover,the realization principles and circuit structures for new high voltage gain Boost converters can be derived with the proposed method.Experimental results are provided to verify the effectiveness of the proposed methods.The proposed method provides a new perspective for analysis,understanding and studying the voltage gain characteristics of Boost converters.